package com.heima.wemedia.service.impl;

import com.alibaba.fastjson.JSONArray;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.heima.apis.article.IArticleClient;
import com.heima.common.tess4j.Tess4jClient;
import com.heima.model.article.dtos.ArticleDto;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.wemedia.pojos.WmChannel;
import com.heima.model.wemedia.pojos.WmNews;
import com.heima.model.wemedia.pojos.WmSensitive;
import com.heima.model.wemedia.pojos.WmUser;
import com.heima.utils.common.SensitiveWordUtil;
import com.heima.wemedia.mapper.WmChannelMapper;
import com.heima.wemedia.mapper.WmNewsMapper;
import com.heima.wemedia.mapper.WmSensitiveMapper;
import com.heima.wemedia.mapper.WmUserMapper;
import com.heima.wemedia.service.WmNewsAutoScanService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.*;
import java.util.stream.Collectors;

@Service
@Slf4j
@Transactional
public class WmNewsAutoScanServiceImpl implements WmNewsAutoScanService {

    @Autowired
    private WmNewsMapper wmNewsMapper;

    /**
     * @description:文章自动审核（由于阿里云的自动审核难以实现，因此设置为自动pass）
     * @author: sunhaonan
     * @param: id
     * @return: null
     **/
    @Override
    @Async//表示当前是一个异步方法
    public void autoScanWmNews(Integer id) {

        //1、查询自媒体文章
        WmNews wmNews = wmNewsMapper.selectById(id);
        if(wmNews == null){
            throw new RuntimeException("WmNewAutoScanServiceImpl-文章不存在");
        }

        //从内容中提取纯文本内容和图片
        Map<String, Object> textAndImages = handleTextAndImages(wmNews);

        //自管理敏感词过滤
        boolean isSensitive = handleSensitiveScan(textAndImages.get("content").toString(),wmNews);
        if(!isSensitive){
            return;
        }
        //2、审核文本内容 ->阿里云接口(由于需要企业认证无法完成，自动通过)
        boolean isTextScan = handleTextScan(textAndImages.get("content").toString(),wmNews);
        if(!isTextScan){
            return;
        }
        //3、审核图片内容 ->阿里云接口(由于需要企业认证无法完成，自动通过)
        boolean isImagesScan = handleImagesScan(textAndImages.get("images"),wmNews);
        if (!isImagesScan){
            return;
        }

        //4、审核成功，保存app端的相关的文章数据
        ResponseResult responseResult = saveAppArticle(wmNews);
        if(!responseResult.getCode().equals(200)){
            throw new RuntimeException("WmNewAutoScanServiceImpl-保存app端相关的文章数据失败");
        }

        //回调article_id
        wmNews.setArticleId((Long) responseResult.getData());
        updateWmNews(wmNews,(short) 9, "审核成功");

    }


    @Autowired
    private WmSensitiveMapper wmSensitiveMapper;
    /**
     * @description:自管理敏感词过滤
     * @author: sunhaonan
     * @param:
     * @return:
     **/
    private boolean handleSensitiveScan(String content, WmNews wmNews) {

        boolean flag = true;

        //获取所有的敏感词
        List<WmSensitive> wmSensitives = wmSensitiveMapper.selectList(Wrappers.<WmSensitive>lambdaQuery().select(WmSensitive::getSensitives));
        List<String> sensitiveList = wmSensitives.stream().map(WmSensitive::getSensitives).collect(Collectors.toList());

        //初始化敏感词库
        SensitiveWordUtil.initMap(sensitiveList);

        //查看文章中是否含有敏感词
        Map<String, Integer> map = SensitiveWordUtil.matchWords(content);
        if(map.size() > 0){
            updateWmNews(wmNews, (short) 2, "当前文章中存在违规内容"+map);
            flag = false;
        }

        return flag;
    }

    @Autowired
    private IArticleClient articleClient;

    @Autowired
    private WmChannelMapper  wmChannelMapper;

    @Autowired
    private WmUserMapper  wmUserMapper;

    /**
     * 修改文章内容
     * @param wmNews
     * @param status
     * @param reason
     */
    private void updateWmNews(WmNews wmNews, short status, String reason) {
        wmNews.setStatus(status);
        wmNews.setReason(reason);
        wmNewsMapper.updateById(wmNews);
    }

    /**
     * @description:保存app端相关的文章数据
     * @author: sunhaonan
     * @param:
     * @return:
     **/
    private ResponseResult saveAppArticle(WmNews wmNews) {

        ArticleDto  dto = new ArticleDto();
        //属性拷贝
        BeanUtils.copyProperties(wmNews,dto);
        //文章的布局
        dto.setLayout(wmNews.getType());
        //频道
        WmChannel  wmChannel = wmChannelMapper.selectById(wmNews.getChannelId());
        if(wmChannel != null){
            dto.setChannelName(wmChannel.getName());
        }
        //作者
        dto.setAuthorId(wmNews.getUserId().longValue());
        WmUser wmUser = wmUserMapper.selectById(wmNews.getUserId());
        if(wmUser != null){
            dto.setAuthorName(wmUser.getName());
        }

        //设置文章id
        if(wmNews.getArticleId() != null){
            dto.setId(wmNews.getArticleId());
        }
        dto.setCreatedTime(new Date());

        ResponseResult responseResult = articleClient.saveArticle(dto);
        return responseResult;
    }

    @Autowired
    private Tess4jClient tess4jClient;

    /**
     * @description:对图片进行审核
     * @author: sunhaonan
     * @param:
     * @return:
     **/
    private boolean handleImagesScan(Object images, WmNews wmNews) {
        boolean flag = true;

        //图片识别
        //由于阿里云的接口无法完成，因此自动通过
        return flag;
    }

    /**
     * @description:文本内容审核
     * @author: sunhaonan
     * @param:
     * @return:
     **/
    private boolean handleTextScan(String content, WmNews wmNews) {
        boolean flag = true;
        if((wmNews.getTitle()+"-"+content).length() == 0){
            return flag;
        }
        //由于阿里云的接口无法完成，因此自动通过
        return flag;
    }

    /**
     * @description:从自媒体文章的内容中提取文本和图片
     * @description:提取文章的封面图片
     * @author: sunhaonan
     * @param: wmNews
     * @return: 
     **/
    private Map<String, Object> handleTextAndImages(WmNews wmNews) {

        //存储纯文本内容
        StringBuilder stringBuilder = new StringBuilder();

        List<String> images = new ArrayList<>();

        //1、从自媒体文章的内容中提取文本和图片
        if(StringUtils.isNotBlank(wmNews.getContent())){
            List<Map> maps = JSONArray.parseArray(wmNews.getContent(), Map.class);
            for(Map map : maps){
                if(map.get("type").equals("text")){
                    stringBuilder.append(map.get("value"));
                }

                if(map.get("type").equals("image")){
                    images.add((String) map.get("value"));
                }
            }
        }

        //2、提取文章的封面图片
        if(StringUtils.isNotBlank(wmNews.getImages())){
            String[] split = wmNews.getImages().split(",");
            images.addAll(Arrays.asList(split));
        }

        Map<String,Object> resultMap = new HashMap<>();
        resultMap.put("content",stringBuilder.toString());
        resultMap.put("images",images);
        return resultMap;
    }
}
